Apparatus for loading or unloading vessels



(No Model.) 3 Sheets-Sheet 1.

J. 1). FISKE. APPARATUS FOR LOADING OR UNLOADING VESSELS. No. 408,'70Z. Patented Aug. 13, 1889.

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WITNESSES} INVENTOR:

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ATTORNEY.

N. PETERS. Pbolu-Lilhogmpher, Washmgwn. 11c,

Q I 3Sheets-Shet 2.. J. D. PISKE.

(No Model.)

, APPABAT-USPOR LOADING QR UNLOADING VESSELS. No. 408 702. Patented Aug. 13,'1889..

INVENTOR:

BY A L Isaak W ATTORNEY.

- WITNESSES:

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APPARATUSFOR LOADING 0B. UNLOADING VESSELS- No. 408,702. w Patented 'Apg. 13, 1889.4

WITNESSES:

BY 0AM ATTORNEY.

whichis wound upon a winch G.

PATENT OFFICE.

JOHN D. FISKE, OF BALTIMORE, MARYLAND.

APPARATUS FOR LOADING OR UNLOADING VESSELS.

SPECIFICATION forming part of Letters Patent No. 408,702,'dated August 13, 1889.

Application filed November 23, 1838. Serial No. 291,639- (No model.)

To ctZZ whom, it may concern.-

Be it known that 1, JOHN D. FISKE, a cit-izen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Apparatus for Loading or Unloading Vessels, of which the following is a specification.

This invention relates to an improved apparatus for loading or unloading vessels, and will first be described, and then set forth in the claims.

The invention is shown in the drawings herewith, in which-- Figure l is a top view of a vessel having my improved apparatus. Fig. 2 is a side view of same, showing the vessel partly in section. Fig. 3 is an elevation showing a cross-section of the vessel and wharf. Fig. 4 shows the parts comprising the apparatus unconnected with the vessel. Figs. 5 and 6 illustrate in detail the form of clutch shown in Figs. 1 to at. Figs. 7 and 8 illustrate a modification in the construction of the clutch. Fig. 9 illustrates some modifications of the apparatus unconnected with the vessel. Figs. 10 and 11 are detail views of the modified construction of clutch shown in Fig. 9.

In the present instance where a vessel is shown in the illustrations the apparatus is arranged for unloading the cargo of the vessel.

Referring to the drawings, the letterA designates a vessel; a, the deck-hole; B, the mast; C, a gaff projecting from the upper part of the mast over the deck-hole a, and D a boom projecting from the mast to the wharf E.

All of the parts just mentioned are of ordinary construction, and are well known.

My improvements are contrived with a view to using but one winch where two have usually heretofore been required.

Attached to the bucket F is a hoist-rope 1), Three pulley-blocks are employed in connection with the hoist-rope 6. These blocks are arranged as follows: The first one o is attached to the gaff O, the second one 0' to the boom D at a point a little beyond where it is desired the bucket shall be dumped, and the third one c to the gaff O. The hoist-rope passes from the winch G up and over the first pulley-block c, thence down to the second block 0 forming a carrier-stretch b, thence up to the third block c, and from there to the bucket F, the latter forming a lift-stretch I)". This arrangement of three pulleys, one rope, and one winch enables the one rope to serve for hoisting the bucket vertically and then for carrying it laterally. To produce this result, however, a suitable clutch-device H must be employed to coact with the two stretches of the rope, which I term the carrier-stretch b and the lift-stretch N. This clutch I-I may be constructed in various Ways, and two forms are illustrated, one in Figs. 5 and 6 and the other in Figs. 7 and S; but my present intention is not limited to any particular construction of clutch.

The body of the clutch has at one end a slot d, and a friction-roller e is mounted in this slot. The lift-stretch b of the rope passes freely through this slot, as shown. At the other end of the clutch-body is another slot f, which is occupied byclutch-plates g, which are pivoted. The carrier-stretch b of the rope passes between these clutch-plates g, which may be more separated to allow the rope to pass freely or may be brought closer together to clutch or take hold of the rope. A cord h is attached to the clutch H and serves to actu ate it or cause its plates g to take hold of the said carrier-stretch b. The cord h passes from the clutch to an eye orpulley 11 onthe gaff O, thence to another eye or pulley t" on the mast B, and thence down along the mast to the deck of the vessel. This cord h has an attached ring or loop 70, and a pin or hook I on the mast or other convenient place of support serves for the engagement of said ring. In unloading a vessel the apparatus will operate in the following-described manner: Assuming the bucket F to be down the deck hole a and ready to be hoisted out, that end of the clutch H to which the plates g are attached must be lifted and supported by the cord 71. This may be done by the person in charge of the winch, who will pull the cord 71. and engage its ring is with the said hook Z. Thereby the position of the clutch-body H with respect to the carrier-stretch b will be that indicated by broken lines in Fig. 5. When the plate end of the clutch-bodyis thus lifted, it will have the effect to more widely separate the two pivotedclutch-plates g, and the rope may then pass between them freely.

The winch G should then be started to wind up on the rope and hoist the bucket F vertically. Upon the bucket reaching a sufficient height the winch will be stopped and the ring it of the cord must then be disengaged from the hook Z. Thereupon the plate end of the clutch will lower by the action of gravity and its position will be that shown in full lines in Fig. 5, and the clutch-plates gwill thereby be brought closer together and take hold of the carrier-stretch Z). The winch should then be started to unwind, the effect of which will be to laterally carry the bucket F from its position directly over the deck-hole a toward the pulley e on the boom. When the bucket is over the wharf,it maybe dumped. By again winding upon the winch the empty bucket will move laterally in the reverse direction until again over the deck-hole, when the cord h will be pulled to lift the plate end of the clutch H and loosen its hold on the carrierstretch I), Then the winch may be reversed to allow the bucket to lower into the deck-hole.

As already stated, the clutch to take hold of the carrier-stretch b may be constructed in various ways, and as an example of the modifications that are practicable reference is made to Figs. 7 and S. This clutch-body H has the slot (Z and roller 6 at one end and a slot f occupied by clutch-plates g at the other end; but in this case the two clutchplates 9 are pivoted to a jointed section II of the clutch-body. The two parts of the body H H are connected by a joint m. A spiral spring a is placed between the two parts, and serves to keep them normally spread apart, as in Fig. 7. The ends of the spring rest in recessed seats a. \Vhen the two parts I I I I are spread, as stated above, the effect on the two clutch-plates g is to bring them closer together and cause them to take hold of the rope. A cord h is attached to the free end of the body-section II, and passes through a suitable hole 0 in the other body-section II, and thence this cord should pass to the eye or pulley i on the gaff O, as in Fig. 4. \Vhen the cord his pulled, the effect will be to bring the jointed parts I I I I of the clutchbody close together, and also lift the end of the clutch to which the plates 1 are attached, the effect of which will be to more widely separate the said two clutch-plates g and allow the rope to pass between them freely.

Fig. 0 shows a somewhat different organization of the apparatus and combines three pulleys, one winch, rope arranged to form a crrricr-stretch and lift-stretch, a clutch eoacting with the said two stretches of rope, and a cord to actuate said clutch. In this case the hoist-rope b passes from the winch G up and over the first pulley-block c, and then down to the bucket F, this down part forming the lift-stretch If. The so-called carrier-stretch b in this case consists of an endless rope over the second and third pulley-blocks c and e. The clutch II has one end secured fast to the carrier-stretch I), and the other end has a slot 1) and two clutch-hooks q pivoted in the slot. The lift-stretch b of rope passes freely through the slot and between the said two hooks q. This lift-stretch is provided with a taper or cone-shaped swell 0, which, when the bucket is being hoisted, may pass up between the hooks q, and then the hooks will close below it, whereupon the winch may be reversed, the effect of which will he to laterally carry the bucket F toward the pulley 0 where it may be dumped. After dumping, the bucket may be brought to a position OVQI the deck-hole by winding up on the winch, when the cord 71 may be pulled to separate the clutch-hooks q and loosen their hold on the said swell 7'. Then the winch may be reversed to unwind and lower the bucket into the vessel.

Having described my invention, I claim- 1. The combination of three pulleys, two of which 0 c are near together and the other at a lateral point therefrom, one winch, rope arranged over said pulleys to form a lateral carrier-stretch b, and a lift-stretch 11 a clutch eoacting with said two stretches of rope, and a cord 71 attached to the clutch for actuating it, as set forth.

2. The combination of three pulleys, two of which 0 e are near together, and the other e at a lateral point therefrom, one winch, a rope passing from the winch to the first pulley c, then laterally to the second pulley 0 thereby forming a carrier-stretch b, thence to the third pulley c and then down to form a liftstretch b and a clutch eoactin g with said carrier-stretch and lift-stretch, for the purpose set forth.

The combination of a rope lift-stretch If, a carrier-stretch, both of said stretches passing over pulleys, a rope-clutch having a body provided with a slot through which the liftstretch passes freely, and having two pivoted clutch-plates g, between which the carrierstreteh 1) passes, and a cord h, attached to the said clutch for actuating it, as set forth.

In testimony whereof I affix my signatn re in presence of two witnesses.

JOHN D. FISKE.

\Vitnesses:

JOHN cums, J NO. T. l\[ADDOX.

IIO 

